|Rank|Name|Nationality|Time|
|---|---|---|---|
||Gustavo Borges|Brazil|1:49.41|
||Scott Tucker|United States|1:50.99|
||Leonardo Costa|Brazil|1:51.29|
||Mark Johnston|Canada|1:51.29|
|5|Nate Boyle|United States|1:52.83|
|6|Yannick Lupien|Canada|1:52.92|
|7|Joshua Ilika|Mexico|1:53.73|
|8|Javier Díaz|Mexico|1:54.01|

Question: how many swimmers clocked less than 1:53 mins to complete the race?
Answer: 6